A retrospective chart review was performed to identify families with prenatal diagnosis of single ventricle congenital heart disease cared for at the Fetal Heart Program (FHP) at Children’s Hospital of Philadelphia (CHOP) for a ten-year period (2010-2020). Candidates were those who had bidirectional Glenn and were scheduled to shortly undergo, or had already undergone, Fontan operation. Institutional review board permission for the study was obtained (CHOP IRB 20-018209). Excluded from this cohort are families that declined surgical intervention, underwent heart transplant, or incurred death prior to Fontan procedure. All subjects were managed and counseled prior to onset of COVID-19 restrictions, as pandemic protocols temporarily, but substantially, altered practice.
Fetal Heart Program Method of Counseling
Prenatal counseling at the Fetal Heart Program at Children’s Hospital of Philadelphia (CHOP) is offered by a dedicated group of providers including a core team of experienced fetal cardiologists, fetal heart nurse coordinators, and fetal heart social worker. Although some individualized variability may occur, in general, counseling is provided in the following manner. Fetal echocardiographic imaging is performed in a dedicated fetal heart imaging suite, located in a separate facility from the pediatric echocardiography laboratory. Following imaging, families are brought into a private consultation room, where findings and counseling by a cardiologist, nurse and social worker is offered as a team, with cardiologist taking the lead in conversation. The encounter includes face-to-face review of patient history, explanation of normal heart structure and function, and conveyance of how current findings of the cardiac anatomy on fetal echocardiography differ from normal. Visual tools such as diagrams of normal and abnormal cardiac structure, either pre-formatted or drawn uniquely for the condition present, are used to aid in explanation. Counseling includes discussion of impact on delivery plans, postnatal treatment course, surgical options as well as short and long-term outcomes. Further education, family assessment and ongoing concerns are addressed by the fetal heart nurse and social worker. Following initial encounter, additional visits occur serially every 4 weeks until delivery, with updated fetal echocardiographic imaging and repeat counseling sessions to supplement and review findings and answer questions. Fetal heart nurse coordinators are in frequent touch with families in response to queries that arise between visits, through phone calls or email communications. Towards the end of gestation, families have an opportunity for a single encounter meeting with a heart surgeon, accompanied by the fetal heart nurse. A tour of the cardiac intensive care unit is offered.
Survey Protocol
An online survey created in REDcap (research electronic data capture) was distributed to family email addresses recorded in the electronic health record (Epic). The survey consisted of basic demographic information, Likert scales (grade 1-5, with 1 as lowest and 5 as highest score) assessing parental grade with respect to various aspects of prenatal counseling, and open-ended questions to elicit further free text response (Table 1, survey). Survey questions solicited grades from parents concerning various aspects of prenatal counseling. The first question related to grading the recollection of prenatal counseling. This was followed by requests for assessments of the following: 1) overall impression of quantity of counseling, 2) explanation of the heart defect, 3) preparation for heart surgery, 4) preparation for the hospital course and care, 5) preparation for complications and outcomes of a Fontan circulation, and 6) preparation for neurological, school related or behavioral problems. Survey questions then solicited impressions concerning how helpful it was to meet with specific FHP members including: 1) fetal cardiologist, 2) fetal heart nurse, 3) fetal heart social worker, and 4) cardiac surgeon.
Only one parent was required to respond and discussion between parents was allowed. The questionnaire was distributed via email to potential candidates 3 times over the course of 2 months to increase response rates. Responding families were assigned a study ID for deidentification purposes. Once a response cohort was identified, chart review was performed to examine patient medical records in a manner blinded to specific survey responses. Data collection included condition variables, as well as factors that influence magnitude of burden of care and potentially impact perceptions of prenatal counseling: cardiac diagnosis, length of hospital stays for all stages of surgical palliation, type of Fontan, utilization of ECMO, number of cardiac catheterizations, additional surgeries beyond anticipated, other non-cardiac diagnoses, use of nasogastric feeding tube, and current medication regimen.
Data Analysis
Data analysis consisted of creating scores for each Likert scale variable by averaging the numerical ratings (1-5) for the survey response cohort. Paired t-tests were used to explore for significant differences between the survey variables of various aspects of prenatal counseling, and between ratings for FHP counseling team members. A composite impression of overall quality of counseling - a “comprehensive fetal counseling score (FCS)” - was calculated for each participant by averaging their individual Likert scale ratings across all 10 survey questions including those concerning prenatal counseling content (6 questions) and the provider assessments (4 questions).
To explore the influence of postnatal course and disease severity on current impressions of prenatal counseling, the magnitude of burden of disease was assessed and compared across the survey responses. Chart review data analysis consisted of determining 5 indicators of overall burden of disease. These included: 1) parental report of their estimate of number of days of initial newborn hospitalization after birth for first stage of care, 2) discharge to home after initial hospitalization with or without a feeding tube, 3) current cardiac medication burden as a reflection of magnitude of care, dichotomized into 2 groups: a) those who only received aspirin alone or aspirin and enalapril (standard medications) and b) those who received additional medications, 4) presence of other comorbid conditions or complications and 5) unexpected interventions such as unanticipated surgeries or cardiac catheterizations. Parental report of days of initial newborn hospitalization was compared with actual medical record recording.
In order to test for possible associations between burden of disease severity and perception of fetal counseling, nonparametric independent t-tests (Independent-Samples Mann-Whitney U Test) were used to determine if there were significant differences in composite FCS values between: 1) those with and without unexpected cardiac surgeries, 2) those with and without unexpected catheterizations, 3) those with and without comorbid conditions, 4) those who were and were not discharged home with a feeding tube, 5) those who had a standard (aspirin with or without enalapril) or increased (more than aspirin and enalapril) medication regimen, and 6) use of extracorporeal membrane oxygenator (ECMO) support at any point during care. Pearson correlation test was used to determine the association between hospitalization length and comprehensive fetal counseling score. A p value of <0.05 was considered significant.